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Understanding compounds and mixtures vs pure chemicals.

Compounds and Mixtures

Incompatible Chemicals
These chemicals should never be allowed to come in contact with one another, not even down the drain!

NIOSH Pocket Guide to Chemical Hazards
The National Institute of Occupational Safety and Health provides this database of chemicals. Use it to keep you and your family safe when experimenting with chemicals.

Elements

Element Games
Online and off you can play these games to help you remember the elements.

The Elements Revealed: An Interactive Periodic Table
Whether gas, liquid or solid; radioactive or stable; reactive or inert; toxic or in your vitamin pill, the 118 building blocks each has its own chemically idiosyncratic characteristics–and certain commonalities. See what makes your favorite element unique on this interactive periodic table. This Scientific American interactive periodic table has links to Nature Chemistry’s In Your Element essay series. Each essay tells the story of a particular element, often describing its discovery, history and eventual uses.

Elements at Walmart (31)
It’s amazing how many elements you can buy in reasonably pure form at Walmart: My list currently contains 31 elements. (When I say “Walmart” I really mean any combination of grocery store, hardware store, and pharmacy.

Homemade Hydrogen
There is a world of difference between watching someone use a special apparatus to make hydrogen in front of the class or on television and doing it yourself using nothing you don’t already have at home right now.

The Structure of Metal
At the atomic heart of metal is a crystalline structure-tightly packed atoms arranged in orderly rows. This feature explores this heart and reveals what it is that gives metal its special characteristics and how metal behaves under the stress of heat and outside forces.

An eye-opening, original collection of gorgeous, never-before-seen photographic representations of the 118 elements in the periodic table.The elements are what we, and everything around us, are made of. But how many elements has anyone actually seen in pure, uncombined form? The Elements provides this rare opportunity. Based on seven years of research and photography, the pictures in this book make up the most complete, and visually arresting, representation available to the naked eye of every atom in the universe. Organized in order of appearance on the periodic table, each element is represented by a spread that includes a stunning, full-page, full-color photograph that most closely represents it in its purest form. For example, at -183°C, oxygen turns from a colorless gas to a beautiful pale blue liquid.Paperback Edition

Periodic Tables

Chemical Elements
My name is Yinon Bentor, and I created Chemical Elements.com as my 8th grade science project several years ago. Since then, I have continued to update the site in my free time, and the site is now very different from the original design.

The Elements, by Tom Lehrer
Sing along with Professor Tom Lehrer as he sings the elements of the periodic table in this Flash animation.

The Periodic Table
Acrobat Files of the Periodic Table arranged in different formats. You are welcome to photocopy these and distribute to students.

The Periodic Table
The Periodic Table is nature’s rosetta stone. To chemists, the periodic table reveals the organizing principles of matter, which is to say, the organizing principles of chemistry. At a fundamental level, all of chemistry is contained in the periodic table.

Periodic Table of Elements
Click on the Shapes and Sizes to get an idea of the frequency of each element present in various settings such as the sea or human body, which are particularly interesting to compare.

Printable Periodic Table of Elements
Includes the Atomic Number, Atomic mass, Symbol, Name, Electronegativity, Density, Ionization energy, Boiling point, Melting point, Electron Configuration, Oxidation States, Ground State Level, Covalent radius, and Van der Waals radius. If you typically work with a different set of properties, you can download the spreadsheet and add in your own numbers.

The WebElements Scholar Edition
A high-quality source of information on the WWW about the periodic table for students. You will find many pictures showing element structures and periodic properties.

The Wooden Periodic Table Table
A real table with cups under each block of wood, holding the actual element. Loads of information about each element, too, should you want to collect your own.

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A2Z Homeschooling

A to Z Home's Cool, since 1997, has been the premiere destination site for those researching homeschooling, those who have decided to homeschool and are now looking for new homeschool groups and friends, as well as for families looking for free and low-cost educational materials for their children, homeschooled or not. Also known fondly as "A2Z Homeschool" we have been expanding into social networking and mobile sites. We are adding complete homeschool resources into our site for those who wish to pick and choose their homeschool curriculum freely. We are a religion-neutral homeschool site. We help you understand all the options available in the world of homeschooling.